package ch05;public class MobileTelephone {
	SIM card;
	public void useSIM(SIM card) {
		this.card = card;
	}
	public void showMess() {
		System.out.println("使用的卡是："+card.giveCorpName()+"提供的");
		System.out.println("手机号码是："+card.giveNumber());
	}
}
